![]() ![]() But what about the people who do? They can’t be held responsible for damage caused by Apple’s own software, can they? Thank God I don’t have to worry about paying for this. My computer is 1 day from being out of warranty.Just stock Apple hardware and distribution software. No Hackintosh hardware or beta OS releases here. But who would have thought that you could brick your computer by installing an OS update from Apple.Turns out that the web is full of stories about bricked Macs after installing Catalina. I’m now doing the homework I should have done before upgrading.It’s there at the Apple store tonight as I write this (on my stable Hackintosh). With these confidence-inspiring words, he then asked me to sign a release to have my computer serviced.Genius at Apple advised me that they had seen a number of cases like mine, and that they had been having “fairly good success” at recovering them.Insisted on Genius Bar appointment, which I got.Opened chat with Apple support, who tried to convince me that this was a problem with my Internet connection.MacBook connected to Internet and downloaded the installer.Pressed shift-cmd-opt-R to get the original OS reinstall.Had some issues and decided to go back to High Sierra, which is what my machine shipped with.Installed Catalina a couple of weeks ago.I wish I had read this thread before I, too, bricked my 2018 MacBook Pro 15 installing Catalina. I've tried all keyboard combinations and nothing works, even with external keyboard! It seems that there is no start up chime, no USB detection, no key feedback. External disk that includes pre installed Mojave (that external OS works well we ran on other Macs).Mojave installation USB stick (that USB works we tried another Macs).Access to time machine restore (with all key combinations).Access local and network recovery (with all key combinations). ![]() Reset SMC and NVRAM (With all combinations these are find on internet and apple support page.).The Blinking question mark folder has appeared on my screen. After restart nightmare has been started. While installing it forced me to restart. I used macOS Mojave on mid-2014 MacBook Pro before update. Here's one report from the support forums.Ĭatalina bricked my MacBook Pro (Mid-2014, 128G) It sounds like those that do fix it via a 3rd party repair shop, replace the EFI firmware chip with a new good one or repair the existing one. There's no way all these failures happening after the update are just a coincidence. 2012 - 2018 that is Catalina eligible, it may be best to wait till Apple fixes their firmware update before you upgrade the OS. Building a CustoMac Hackintosh: Buyer's GuideĮFI firmware problem bricking some Macs on update to Catalina - 9to5Mac ![]()
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